The TC0309A from Tai-Saw Technology is a SAW Resonator with Frequency 737.508 to 737.596 MHz, Centre Frequency 737.552 MHz, Insertion Loss 1.26 to 2 dB, Capacitance 2.84 pF, Quality Factor Unloaded 9216. Tags: Surface Mount, SAW Resonator. More details for TC0309A can be seen below.